A large petroleum company in the Southwest regularly
Chapter 15, Problem 15.40(choose chapter or problem)
A large petroleum company in the Southwest regularly conducts experiments to test additives to drilling uids. Plastic viscosity is a rheological measure reecting the thickness of the uid. Various polymers are added to the uid to increase viscosity. The following is a data set in which two polymers are used at two levels each and the viscosity measured. The concentration of the polymers is indicated as low or high. Conduct an analysis of the 22 factorial experiment. Test for eects for the two polymers and interaction. Polymer 1 Polymer 2 Low High Low High 3.0 11.7 3.5 12.0 11.3 21.7 12.0 22.4
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